MOBILE, Ala. (NNS) — The future USS Coronado (LCS 4) successfully concluded acceptance trials after completing a series of graded in-port and underway demonstrations for the Navy’s Board of Inspection and Survey (INSURV), the Navy announced Aug. 28.

130823-N-EW716-001 GULF OF MEXICO (Aug. 23, 2013) The future USS Coronado (LCS 4) conducts at-sea acceptance trials in the Gulf of Mexico. Acceptance trials are the last significant milestone before delivery of the ship to the U.S. Navy, which is planned for later this fall. (U.S. Navy photo courtesy of Austal USA/Released)

Acceptance trials are the last significant milestone before delivery of the ship to the Navy, which is planned for later this fall. The ship completed trials Aug. 23.

“Coronado’s performance was strong” said Rear Adm. Robert Wray, INSURV president. “[This was] the most complete and rigorous trial on the Independence variant to date. I remain bullish on these seaframes.”

During the four-day trial, the Navy conducted comprehensive tests intended to demonstrate the performance of the propulsion plant, ship handling and auxiliary systems. While underway, the ship successfully performed launch and recovery operations with both the 7-meter and 11-meter rigid hull inflatable boats, a four-hour full power run, surface and air self defense detect-to-engage exercises, and demonstrated the ship’s tremendous maneuverability performing tight turns and accomplishing speeds in excess of 40 knots.

“Coronado encompasses lessons learned from the construction and operation of its predecessor USS Independence. The value of those changes was evident in the strong performance of the ship during her trial.” said LCS Program Manager Capt. Tom Anderson. “It’s a very exciting time in the LCS program.”

Following delivery and commissioning, Coronado will be homeported in San Diego with its sister ships USS Freedom (LCS 1), USS Independence (LCS 2) and USS Fort Worth (LCS 3).

Wichita (LCS 13) and Billings (LCS 15) are under contract with Marinette Marine Corp and in the pre-production phase, while Manchester (LCS 14) and Tulsa (LCS 16) under contract with Austal and in the pre-production phase.

The littoral combat ship class is designed to defeat threats in coastal waters where increasingly capable submarines, mines, and swarming small craft operate. To deliver capabilities against these threats, the Navy introduced LCS with innovative concepts, such as modular mission packages, to quickly respond to an evolving threat.